JPH0744904Y2 - Hot water temperature controller - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention is a hot water that automatically adjusts the bath temperature according to the change in the sensation of the bather, without the bather having to adjust the bath temperature. The present invention relates to a temperature adjusting device.

<Prior art> Conventionally, when a bather adjusts the hot water temperature while taking a bath, hot water or water is added, a hot water heater is ignited to heat the hot water, or a hot water temperature controller dial or switch is used. The temperature of the hot water was adjusted by actually performing adjustment work such as operating the heating device by adjusting the controller of the heating device by changing the setting of the hot water temperature by operating.

<Problems to be solved by the device> The temperature of the hot water in the bathtub changes with time, and the sensation of the bather to the hot water temperature also changes depending on the elapsed bathing time and the way of bathing. Therefore, in the conventional adjustment of the hot water temperature, it is difficult for the bather to maintain the optimum hot water temperature, and the bather needs to frequently adjust the hot water temperature, which is very troublesome.

The present invention has been made in view of such circumstances, and a hot water that automatically adjusts the hot water temperature according to the change in the sensation of the bather even if the bather does not adjust the hot water temperature. It is intended to provide a temperature adjusting device.

<Means for Solving the Problems> In order to achieve such an object, the hot water temperature adjusting device according to the present invention is a pulse detector for detecting the pulse of a bather, and a voice signal from the pulse detector. A data processing circuit for extracting a pulse signal from the inside, a temperature detector for detecting the hot water temperature, and a hot water temperature control unit for controlling the hot water temperature by signals from the data processing circuit and the temperature detector.

<Operation> The operation of the above configuration of the present invention is as follows.

The pulse detector detects the voice transmitted in the bathtub, and the signal of this voice is sent to the data processing circuit to extract only the beating sound of the bather's heart from the detected voice. In the data processing circuit, this voice signal is passed through a filter to cut off excess frequency components, and only signals with periodicity that match the human pulse are picked up to find the pulse rate and control it in hot water temperature. Send to the department. The temperature detector detects the hot water temperature in the bathtub and sends the hot water temperature signal to the hot water temperature control unit.
Then, if the pulse rate is higher than before, a signal for lowering the hot water temperature from the current hot water temperature is generated from the hot water temperature control unit, and the operation to lower the hot water temperature is performed. Conversely, if it is lower than the previous pulse rate, the hot water temperature is lowered. A signal for raising the temperature is generated from the hot water temperature control section to increase the temperature of the hot water. For this reason, it is not necessary for the bather to adjust the hot water temperature by feeling, and it is convenient to obtain a comfortable hot water temperature by feeling.

<Embodiment> An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of a hot water temperature adjusting device according to the present invention.

In the figure, 2 is a bathtub, 6 is a pulse detector, 8 is a data processing circuit, 10 is a temperature detector, and 12 is a hot water temperature control unit. Pulse detector 6 and temperature detector as in hot water 4 in bathtub 2
A pulse detector 6 and a temperature detector 10 are connected to the data processing circuit 8.

The pulse detector 6 and the data processing circuit 8 form a pulse detector 14. As the pulse detector 6, for example, an underwater microphone or the like is used, and is provided in the bathtub 2 so as to be located in hot water. The pulse detector 6 detects all of the bather's pulse sounds, moving sounds, and other various sounds transmitted to the bath water, and converts them into audio signals.

In the data processing circuit 8, all the audio signals detected by the pulse detector 6 are passed through a filter to remove the frequency components of the signal of an extra disturbing sound other than the pulse sound, and have a periodicity suitable for the human pulse. The signal is picked up, the pulse rate is calculated, and this pulse rate is stored. After that, in order to check the change in the pulse sound of the bather after a lapse of a predetermined time, the pulse rate is obtained in the same manner as above, and this pulse rate is compared with the stored initial pulse rate. Then, as a result of the comparison, when the current pulse rate is higher than the previous pulse rate, a signal for operating to lower the hot water temperature is output, and when the current pulse rate is lower than the previous pulse rate, , Outputs a control signal for operating to raise the hot water temperature. A hot water temperature control signal is sent to the hot water temperature control unit 12.

The temperature detector 10 detects the hot water temperature and outputs a hot water temperature signal, and the hot water temperature signal thus detected is sent to the hot water temperature control unit 12. As the temperature detector 10, an ordinary thermocouple, thermistor or the like is used.

The hot water temperature control unit 12 controls the hot water temperature so as to be vertically matched by a temperature signal from the temperature detector 10 and a signal from the data processing circuit 8 for controlling the hot water temperature. For example, when a temperature signal and a control signal for lowering the hot water temperature come from the data processing circuit 8, the bathtub 2
The water temperature is lowered by adding water or using a refrigerant. When a control signal for raising the hot water temperature is sent, the hot water temperature is raised by adding hot water to the bathtub 2 or operating a heater. If there is a contradiction between the temperature signal from the temperature detector 10 and the signal for controlling the hot water temperature from the data processing circuit 8, the bather's pulse rate is prioritized for control. That is, a signal for raising the hot water temperature from the set hot water temperature and the current hot water temperature enters the hot water temperature control unit 12, and a signal for increasing the pulse rate of the bather and lowering the hot water temperature is sent from the data processing circuit to the hot water temperature control unit 12. When sent, the hot water temperature control unit 12 performs selection based on the priority order of selection of both signals, and the hot water temperature lowering signal is prioritized, the hot water temperature lowering operation is performed, and the hot water temperature is lowered. Conversely, if the bather's pulse rate is lower than the initial pulse rate, a signal for raising the hot water temperature is sent from the data processing circuit 8 to the hot water temperature control unit 12,
The hot water temperature control unit 12 operates to raise the hot water temperature to raise the hot water temperature. The hot water temperature control unit 12 has a function of issuing a hot water temperature setting signal and a hot water temperature control signal, stores a pulse rate, and inputs the relationship of the hot water temperature to be changed according to the change of the pulse rate. The part having a function of issuing a hot water temperature control signal in accordance with the change of and the means for operating the hot water temperature control signal to adjust the hot water temperature may be separately configured.

As described above, according to the present invention, the bath temperature is adjusted by detecting the pulse rate, which eliminates the need for the bather to adjust the bath temperature by himself / herself, and it is convenient to obtain a comfortable bath temperature. Became.

Although a hydrophone is used as the pulse detector in the above description, a wristwatch-type pressure sensor may be used and may be worn when taking a bath. in this case,
Although it is cumbersome to wear, the signal that interferes from the outside is much less than when using a hydrophone, so the process of obtaining the pulse rate of the data processing circuit is simple, and the pulse rate can be detected. The accuracy of the value is also improved.

Further, the transmission of the signal from the pulse detector is not limited to the wired transmission, and may be performed by another method such as wireless. Furthermore, the pulse detector and the data processing circuit detect the pulse and calculate and store the pulse rate,
Although the comparison and control signals are generated, the pulse detector and the data processing circuit simply calculate the pulse rate and output the pulse rate signal, and the hot water temperature control unit responds to the hot water temperature according to the pulse rate signal. You may make it output a control signal.

Besides, the present invention is not limited to the above-described embodiments, and modifications and changes can be made without departing from the scope of the invention.

<Effect of the device> According to the present invention, the pulse rate of the bather is detected by the pulse detector, and the hot water temperature is adjusted based on this pulse rate, so that the bather can manually adjust the hot water temperature by feeling. There is no need to do it, and it is convenient to get a comfortable hot water temperature.

In addition, especially when elderly people or sick people should not place an excessive burden on the heart, the hot water temperature control unit can adopt a control algorithm that adjusts the hot water temperature by paying attention to the burden on the heart from the change in the pulse rate, etc. , A hot water temperature adjusting device with a wide range of applications.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of a hot water temperature adjusting device according to the present invention. 2 ... Bathtub, 6 ... Pulse detector 8 ... Data processing circuit, 10 ... Temperature detector 12 ... Hot water temperature control unit

Claims (1)

[Scope of utility model registration request] 1. A pulse detector for detecting a bather's pulse, a data processing circuit for extracting a pulse signal from a sound signal from the pulse detector, a temperature detector for detecting hot water temperature, and the data. A hot water temperature adjusting device comprising: a hot water temperature control unit that controls the hot water temperature by signals from a processing circuit and a temperature detector.